+extern struct flash_driver efm32_flash;
+extern struct flash_driver mdr_flash;
+extern struct flash_driver mini51_flash;
+extern struct flash_driver nuc1x_flash;
+extern struct flash_driver nrf51_flash;
+extern struct flash_driver mrvlqspi_flash;
+extern struct flash_driver psoc4_flash;
+extern struct flash_driver sim3x_flash;
+extern struct flash_driver jtagspi_flash;